Sorry, what's the connection? Are we talking about
https://svn.open-mpi.org/trac/ompi/ticket/1791 ? Are you simply saying
that if I'm doing some sm BTL work, I should also look at 1791? I'm
trying to figure out if there's some more specific connection I'm missing.
Ralph Castain wrote:
You might want to look at ticket #1791 while you are doing this -
Brad added some valuable data earlier today.
On Feb 12, 2009, at 12:13 PM, Eugene Loh wrote:
Jeff Squyres wrote:
This should probably include the disclaimer that we talked about
this extensively yesterday at the sm/btl meeting after the MPI
Forum meeting in San Jose.
Eugene has been working on new sm stuff (as he has posted), and we
had a very productive meeting yesterday discussing what he has
done and how to get it all into the trunk. Have a look at his
slides at the bottom of this wiki page:
https://svn.open-mpi.org/trac/ompi/wiki/Feb09Meetingsjc
Eugene will be replacing the current sm btl with a new one
Let's downgrade that statement. I intend to make a series of
putbacks to the current sm BTL to improve latency. I'm not so much
"replacing" the current BTL as doing some optimization work.
that uses a single queue and various other improvements. Hence,
the current ompi_*fifo.h files will no longer be necessary.
Additionally, we resolved the "abstraction break" issues that were
discussed here on the list a little while ago -- we think all the
improvements can be done in the current architecture without
disrupting the abstraction barriers. This RFC is one step in the
process; eliminate some no- longer-necessary kruft.
On Feb 12, 2009, at 8:53 AM, Eugene Loh wrote:
RFC: Eliminate ompi/class/ompi_[circular_buffer_]fifo.h
WHAT: Eliminate those two include files.
WHY: These include files are only used by the sm BTL. They
are not generally usable. Further, the sm BTL will soon no
longer use them. The current FIFOs support only a single sender
each and we want multiple senders to be able to share a common
FIFO. The current FIFOs also can grow without bound, which is
complicated support that we don't think we need.
WHERE: Two include files: ompi/class/ompi_[circular_buffer_]fifo.h
WHEN: "Immediately". Intended for 1.3.x.
TIMEOUT: February 20, 2009.
